EP 3188916 A1 20170712 - OPTICAL VARIABLE SECURITY ELEMENT
Title (en)
OPTICAL VARIABLE SECURITY ELEMENT
Title (de)
OPTISCH VARIABLES SICHERHEITSELEMENT
Title (fr)
ELEMENT DE SECURITE A EFFET OPTIQUE VARIABLE
Publication
Application
Priority
- DE 102014013049 A 20140903
- EP 2015001727 W 20150824
Abstract (en)
[origin: WO2016034274A1] The invention relates to a visually variable security element (12) for securing objects of value, comprising a characteristic region (14) displaying at least two different, visually variable effects. According to the invention, the characteristic region (14) is provided with a micro-structure (34) in a first sub-region (16), said micro-structure having a first visually variable effect, a second sub-region (18) of the characteristic region (14) is not provided with a micro-structure, the characteristic region (14) is provided with a thin-layer element (40) which covers the micro-structure (34) and has an interference layer construction, said thin-layer element generating a colour-change effect as the second visually variable effect in the second sub-region (18), and the interference layer construction of the thin-layer element (40) has a printed dielectric layer (44) in the first and second sub-regions (16, 18), via which the colour-change effect in the first sub-region (16) having the micro-structure (34) is suppressed for the naked eye, such that only the first visually variable effect of the micro-structure (34) occurs in the first sub-region (16), and the colour-change effect of the thin-layer element (40) occurs as the second visually variable effect in the second sub-region (18).
IPC 8 full level
B42D 25/328 (2014.01)
CPC (source: CN EP)
B41M 3/14 (2013.01 - CN EP); B42D 25/324 (2014.10 - CN EP); B42D 25/328 (2014.10 - CN EP); B42D 25/355 (2014.10 - CN EP); B42D 25/36 (2014.10 - CN EP)
Citation (search report)
See references of WO 2016034274A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102014013049 A1 20160303; CN 106573488 A 20170419; CN 106573488 B 20180406; EP 3188916 A1 20170712; EP 3188916 B1 20180801; WO 2016034274 A1 20160310
DOCDB simple family (application)
DE 102014013049 A 20140903; CN 201580043842 A 20150824; EP 15775377 A 20150824; EP 2015001727 W 20150824